<template>
  <header class="header-nav">
    <el-row>
      <!-- <el-col :span="6"
              class='logo-container'>
        <img src="./../assets/logo.png"
             alt=""
             class="logo"> -->
        <!-- 折叠按钮 -->
        <div class="collapse-btn"
             @click="collapseChage">
          <i class="el-icon-menu icon-btn"></i>
        </div>
        <span class="title">后台管理系统</span>
      </el-col>
      <el-col :span="6"
              class="user">
        <div class="btn-fullscreen icon-font">

        </div>
        <div class="userinfo">
          <div class="btn-fullscreen icon-font">
            <el-tooltip class="item"
                        effect="dark"
                        content="锁屏"
                        placement="bottom">
              <i class="iconfont icon-bofangqi-suoping"
                 @click="handleLockScreen"></i>
            </el-tooltip>
          </div>
          <div class="btn-fullscreen icon-font">
            <el-tooltip class="item"
                        effect="dark"
                        content="换色"
                        placement="bottom">
              <theme />
            </el-tooltip>
          </div>
          <!-- 全屏显示 -->
          <div class="btn-fullscreen"
               @click="handleFullScreen">
            <el-tooltip effect="dark"
                        :content="fullscreen?`取消全屏`:`全屏`"
                        placement="bottom">
              <i class="el-icon-rank"></i>
            </el-tooltip>
          </div>
          <img class="avatar"
               :src="users.avatar">
          <div class="welcome">
            <p class="name comename">欢迎</p>
            <p class="name avatarname">{{users.name}}</p>
          </div>
          <span class='username'>
            <el-dropdown trigger="click"
                         @command='setDialogInfo'>
              <span class="el-dropdown-link">
                <i class="el-icon-caret-bottom el-icon--right"></i>
              </span>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item command='info'>个人信息</el-dropdown-item>
                <el-dropdown-item command='logout'>退出</el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </span>
        </div>
      </el-col>
    </el-row>
  </header>
</template>

<script>
import bus from '../common/bus'
import theme from '../common/theme'
// import Aplayer from 'vue-aplayer'
// @ is an alias to /src
export default {
  name: 'header-nav',
  data () {
    return {
      collapse: false, //菜单栏是否闭合
      fullscreen: false,
      showlrc: true,
    }
  },
  computed: {
    users () { //通过vuex获取用户信息
      return this.$store.getters.user
    },
  },
  methods: {
    setDialogInfo (cmditem) {
      switch (cmditem) {
        case 'info':
          this.showInfoList()
          break;
        case 'logout':
          this.logout()
          break;
      }
    },
    handleLockScreen () {
      this.$confirm('是否要进行锁屏?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$message({
          type: 'success',
          message: '锁屏成功!'
        });
        setTimeout(() => {
          this.$router.push('/lock')
        }, 100)
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '锁屏失效'
        });
      });
    },
    showInfoList () {
      // console.log('下来菜单')
      this.$router.push('/Infoshow')
    },
    logout () {
      // console.log('退出')

      //清除token
      localStorage.removeItem('User');
      //清除vuex
      // this.$store.dispatch('createUser')
      //路由跳转
      // this.$router.push('/login')
      location.href = '/'
    },
    collapseChage () {
      //点击隐藏左侧菜单栏，
      this.collapse = !this.collapse;
      //非父子组件传值
      bus.$emit('collapse', this.collapse);
    },
    handleFullScreen () {
      //获取到整个html
      let element = document.documentElement;
      // console.log(element)
      if (this.fullscreen) {
        if (document.exitFullscreen) {
          document.exitFullscreen();
        } else if (document.webkitCancelFullScreen) {
          document.webkitCancelFullScreen();
        } else if (document.mozCancelFullScreen) {
          document.mozCancelFullScreen();
        } else if (document.msExitFullscreen) {
          document.msExitFullscreen();
        }
      } else {
        if (element.requestFullscreen) {
          element.requestFullscreen();
        } else if (element.webkitRequestFullScreen) {
          element.webkitRequestFullScreen();
        } else if (element.mozRequestFullScreen) {
          element.mozRequestFullScreen();
        } else if (element.msRequestFullscreen) {
          // IE11
          element.msRequestFullscreen();
        }
      }
      this.fullscreen = !this.fullscreen;
    }
  },
  components: {
    theme,
    // Aplayer
  }
}
</script>
<style scoped>
.header-nav {
  width: 100%;
  height: 60px;
  background: #324057;
  color: #fff;
  border-bottom: 1px solid #1f2d3d;
  overflow: hidden;
  padding: 5px 0;
  line-height: 60px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 5;
}

.collapse-btn {
  width: 50px;
  margin-left: 20px;
  display: inline-block;
}
.aplayer {
  margin: 0;
}
.icon-btn {
  font-size: 36px;
  vertical-align: middle;
  cursor: pointer;
}

.logo-container {
  line-height: 60px;
  min-width: 400px;
  padding: 0 5px;
}

.logo {
  height: 50px;
  width: 50px;
  margin-right: 5px;
  vertical-align: middle;
  display: inline-block;
}

.title {
  vertical-align: middle;
  font-size: 22px;
  font-family: "Microsoft YaHei";
  letter-spacing: 3px;
}

.user {
  /* line-height: 60px; */
  text-align: right;
  float: right;
  /* padding-right: 10px; */
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  vertical-align: middle;
  display: inline-block;
}

.welcome {
  display: inline-block;
  width: auto;
  vertical-align: middle;
  padding: 0 5px;
}

.name {
  line-height: 20px;
  text-align: center;
  font-size: 14px;
}

.comename {
  font-size: 12px;
}

.avatarname {
  color: #409eff;
  font-weight: bolder;
}

.username {
  cursor: pointer;
  margin-right: 5px;
}

.el-dropdown {
  color: #fff;
}

.btn-fullscreen {
  display: inline-block;
  font-size: 24px;
  vertical-align: middle;
  margin-right: 20px;
  transform: rotate(45deg);
  cursor: pointer;
}

.icon-font {
  transform: none;
}

a {
  text-decoration: none;
  color: #fff;
}

.icon-font i {
  font-size: 20px;
}

.userinfo {
  display: inline-block;
}
</style>
